Hi, The mapping of the domain user is done by idmap. Then no user has a mapping with uid=0 I've set up a user in "printer admin" and "write list" options. And normaly this user can add driver in print$ share. But the "add printer" icon doesn't appear and all the options in "server properties" are disabled. However, if I add in the LDAP directory the objectclass "PosixAccount" and "uidNumber: 0" for this user. The "add printer" icon is available and all the options in "server properties" are available too. But in printing.html (in docs directory) I can find this : In order to currently add a new driver to you Samba host, one of two conditions must hold true: The account used to connect to the Samba host must have a uid of 0 (i.e. a root account) The account used to connect to the Samba host must be a member of the printer admin list. Then if I understand a normal user is normaly able to add driver if he is a member of "printer admin" only. It's not mandatory that the user be "root". In my config (samba-3.0beta1), if the user is not root (uidNumber=0) He cannot do anything with printers drivers ! Thank for your help, Regards, Raphael